From 6992c3c3739dad249e8c396057d5cbeedcdf91de Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Tue, 17 Aug 2010 17:24:42 -0700 Subject: ir_to_mesa: Fix implementation of ir_binop_equal, ir_binop_notequal. These binops are the vector-to-bool comparisons, not vec-to-bvec. We likely want both operations avilable as expression, since 915 and 965 FS naturally does the vector version, while 965 VS can also naturally do the scalar version. However, we can save that until later. Fixes: glsl-fs-vec4-operator-equal.shader_test glsl-fs-vec4-operator-notequal.shader_test glsl-vs-vec4-operator-equal.shader_test glsl-vs-vec4-operator-notequal.shader_test --- src/mesa/program/ir_to_mesa.cpp | 28 ++++++++++++++++++++++++++-- 1 file changed, 26 insertions(+), 2 deletions(-) (limited to 'src/mesa/program') diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp index 7fff66c78b1..7b65fa4203b 100644 --- a/src/mesa/program/ir_to_mesa.cpp +++ b/src/mesa/program/ir_to_mesa.cpp @@ -813,10 +813,34 @@ ir_to_mesa_visitor::visit(ir_expression *ir) ir_to_mesa_emit_op2(ir, OPCODE_SGE, result_dst, op[0], op[1]); break; case ir_binop_equal: - ir_to_mesa_emit_op2(ir, OPCODE_SEQ, result_dst, op[0], op[1]); + /* "==" operator producing a scalar boolean. */ + if (ir->operands[0]->type->is_vector() || + ir->operands[1]->type->is_vector()) { + ir_to_mesa_src_reg temp = get_temp(glsl_type::vec4_type); + ir_to_mesa_emit_op2(ir, OPCODE_SNE, + ir_to_mesa_dst_reg_from_src(temp), op[0], op[1]); + ir_to_mesa_emit_op2(ir, OPCODE_DP4, result_dst, temp, temp); + ir_to_mesa_emit_op2(ir, OPCODE_SEQ, + result_dst, result_src, src_reg_for_float(0.0)); + } else { + ir_to_mesa_emit_op2(ir, OPCODE_SEQ, result_dst, op[0], op[1]); + } break; - case ir_binop_logic_xor: case ir_binop_nequal: + /* "!=" operator producing a scalar boolean. */ + if (ir->operands[0]->type->is_vector() || + ir->operands[1]->type->is_vector()) { + ir_to_mesa_src_reg temp = get_temp(glsl_type::vec4_type); + ir_to_mesa_emit_op2(ir, OPCODE_SNE, + ir_to_mesa_dst_reg_from_src(temp), op[0], op[1]); + ir_to_mesa_emit_op2(ir, OPCODE_DP4, result_dst, temp, temp); + ir_to_mesa_emit_op2(ir, OPCODE_SNE, + result_dst, result_src, src_reg_for_float(0.0)); + } else { + ir_to_mesa_emit_op2(ir, OPCODE_SNE, result_dst, op[0], op[1]); + } + break; + case ir_binop_logic_xor: ir_to_mesa_emit_op2(ir, OPCODE_SNE, result_dst, op[0], op[1]); break; -- cgit v1.2.3